GMC P CODES (POWERTRAIN) P1300 - P1399

2000 Gmc Sierra 4.3 V6 With Approx. 95,000 Miles. When My Mechanic Can Get The Code To Clear, The Engine Will Run At Idle But Will...

Please Help Me About This Coad Thanks.

Replaced Distributor Code Comes Back After About 200 Mile, Is There Another Adjustment

What Can I Do To Fix And What Is Wrong

How Do I Eliminate The P1345 Code? I Have Set The Timing By Setting The #1 Cylinder To Tdc And Set The Distributor To #1 Cylinder Several...